This Jonard Tools TK-RJ45 Network Tool Kit provides all the necessary tools for cutting, crimping, punching, and terminating network and telephone cables. The included crimper tool crimps RJ11/12 and RJ45 connectors onto Cat 3, Cat 5/5e, and Cat 6 cables. The punchdown tool punches the cable down into a 110-patch panel or keystone jack. The stripper removes the jacket from the Cat 5/5e/6 network cables. The kit includes ten RJ45 and ten RJ12 connectors.